kinney



(No Model.) 2 Sheets-Sheet 1.

I. KINNEY.

METALL'IG- LATHING.

No. 400,774. Patented Apr. 2, 1889 FIG. I

l F|G-|l|- FIGJV- ILI J [OJ A lol lo I I (No Model.) 2 sheets-s eet 2.

I. KINNEY. METALLIC LATHING.

No. 400,774. Patented Apr. 2;, 1889.

* UNITED STATES PATENT OFFICE.

ISRAEL KINNEY, OF WINDSOR, ONTARIO, CANADA.

METALLIC LATHING.

SPECIFICATION forming part of Letters Patent No. 400,774, dated April 2, 1889.

Application filed December 3, H387. Serial No. 256,906. (No model.)

Lalhing, of which the following is a spccification. 7

My invention relates to that class of lathing for fireproof structures formed from sheet metal of any suitable kind, and has for its objects to produce an article combining cheapness and inflexibility with economy of material and space and adaptability for receiving and retaining the mortar.

To these ends my invention consists in corrugating a strip of metal and forming thereon lateral flanges, as hereinafter described, orin forming in a piece of sheet metal of any desired size a number of longitudinal corrugations, with or without spaces between them, then slitting the corrugated plate longitudinally in the intermediate spaces, or in alternate corrugationsthroughout its entire length, excepting at certain parts, in such a manner as to leave transverse bands at short distances apart for holding or binding together the longitudinal strips formed by the said slitting. After thus preparing the sheet the portions of the longitudinal strips between the said transverse bands are alternately forced outward and inward or raised and depressed, corresponding portions of adjacent strips being bent oppositely, so as to form a slatted outer face to the lathing, between which slats the mortar may enter, having interposed depressed slats for checking the mortar and defleeting it by means of the inclined sides of the corrugations behind the said outer slats, so as to form the required key for securing the mortar to the lathing.

In order that my invention may be Inore fully understood, I will proceed to describe it with reference to the accompanying drawings, in which- Figure I is a view of the blank from which the preferred form of my lathing is made. Fig. II is a plan of the preferred form of my lathing complete. Fig. III is an edge view of the same. Fig. IV is a modification having the securing-bands riveted on. Fig. V shows corrugated metallic strips applied to the studding, and bound by wires or otherwise. Fig. VI is a section showing theapplication of the plastering. Fig. VII is a modification of corrugated sheet, consisting of wavy sheet metal Without intervening spaces between the corrugations, alternate ones of the corrugations being slitted. Fig. VIII shows a modification of application-in which alternate strips are inverted. Fig. IX shows a further modification in which alternate strips are inverted, and the remaining ones are supplied with supplementary flanges.

A are the longitudinal strips, 13 the transverse bands, I) the flat webs between the strips, and a the flanges on the sides of the corrugations.

a are flanges formed from blank. (Shown in Fig. VII.) The lathing may be fastened to the studding H in any convenient manner-such as by nails driven through perforations to, or by any other suitable means. The lathing is made in convenient sizes, and when applied the meeting flanges a may overlap, so as to make a stiffer joint.

I do not limit myself to the particular form of blank used, for it is obvious that the sheet metal may be corrugated throughoutthat is, omitting the fiat web between the grooves and slitting the sheetalong the middle of alternate corrugations, as shown in Fig. VII; or I may secure the single corrugated strips at their ends and at intermediate poin s by any means equivalent to the band of uncut metal left. For instance, the corrugated strips may have their ends or other parts secured together by means of transverse bands riveted thereto, as shown in Fig. IV.

Still another way of applying my improvement is as follows: I form the corrugated metallic strips singly and then apply them to the studding of a partition, or to a wall, by nails, how the intermediate parts alternately outward and inward, and then, if necessary, se-

cure them by transverse bands or Wires I, parallel to and between the studding in any preferred manner, it being the object here to use the single strips very much as ordinary lathing is applied. These last-described transverse securing-bands may be dispensed with, especially if the studding be close together. In using the single strips, however, I prefer to raise and depress the intermediate portions thereof between the studding and securingstrips alternately, so as to have the same effect as the sheet of lathing. The form I prefor is that shown in Figs. I, II, and III, in which the rib has plane faces and is preferably V-shaped in cross-section. This bowing may be dispensed with in some cases.

It will be seen from the representation in Fig. VI thatas the mortar is forced in between the upper slats and strikes against the detions.

pressed ones the slanting sides of the corrugations of the said depressed strips deflect the mortar, directing it behind the raised strips, whereby, upon hardening, it forms an effective key for securing the plastering to the lathin g.

Other modifications of my invention, as shown in Figs. VIII and IX, are carried out as follows: I form the siding or ceiling by overlapping the flanges of alternately-inverted ribbed or corrugated strips, the same being secured by nails driven through the apex of the corrugation, whereby a vertical space is left between said overlapping flanges, into which the mortar may enter. Fig. IX shows such a construction having a supplementary flange, a, for closing said vertical opening bei ween the overlapping flanges, affording support for the flange of the inverted strip, and forming a perfectly tight trough or box, the flanges of the inverted strip projecting sufficiently beyond the supplementary flange to enable the eifective keying of the mortar behind them. In this latter form the alternate depressing and raising of the strips is dispensed with, though it may be adhered to in the former arrangement, (see Fig. V 1H,) provided the flanges are not overlapped.

In the siding shown in Fig. V the strips are represented as placed a short distance apart, in which position it may be advisable not to bow them. If it is desired to bow them, they will serve better placed close together. The form of lath having the su 'i jilemental flange a. could obviously be used to good advantage ifalternate ones of the strips were inverted, the said supplementary flanges interlocking and thus preventing any tendency toward separation.

I am aware that it is not new to have metallic lathing formed of a sheet with alternately raised and depressed strips cut so as to leave transverse connecting bands, which bands are corrugated for strength; but this is not the equivalent of my invention, in which the longitudinal strips themselves are corrugated and alternately raised and depressed, the advantage arising from this being that the lathing-strips are strengthened and the mortar is better deflected, as has hereinbefore been particularly explained. v

I am also aware that it has been proposed to form lathing by bending alternately a number of parallel strips of flat metal and having a securing-strip running along the sheet for securing said bent strips; also, that it has been proposed to form a rib or corrugation in this straight seeuring-strip; but this is obviously not the equivalent of my invention, in which the bent or bowed strips are first corrugated and then bent in the plane of their lengths, portions alternately in opposite directions. The obvious advantage of this is that the rib or corrugation on the bent portion serves to deflect the mortar better than. the raised per- Having thus described my invention, the fol= lowing is what I claim as new therein and desire to secure by Letters Patent:

1. Metallic lathi'ng formed of sheet metal havinglongitudinal corrugations A and slitted longitudinally throughout between said corrugations, excepting at points in transverse zones, whereby bands B are left for holding the strips thus formed together, portions of said strips being alternately raised and depressed, as herein shown.

2. Metalliclathing constructed of longitudinally-corrugatei'l strips secured together, as shown, by transverse bands, portions of each longitudinally-corrugated strip being raised or depressed, the raised portion of one strip being opposite the depressed portion of the adjacent strips, whereby the mortar is deflected by the sides of the corrugations in the depressed portions behind the raised portions, as set forth. i

8. Metallic lathing constructed, substantially as described, of longitudinally-corrugated flanged strips secured parallel to each other, portions of each strip throughout being alternately raised and depressed, the raised portions of one strip being opposite the depressed portions of the adjacent strips, whereby the corrugations and flanges of the depressed portions of each strip deflect the mortar behind the raised portions of the adjacent strips to eifectually key the same.

4. Metallic lathing constructed of longitudinally-corrugated strips secured together, as described, an d having their portions between securingpoint-s alternately raised and depressed, as hereinbefore explained.

5. Metallic lathin g constructed of longitudinally-corrugated strips secured in the proper relative positions to each other, substantially as shown, said longitudinal strips being bowed alternately in the plane of their length, as shown and described.

6. Metallic lathing consisting of long parallel longitudinally-corrugated strips, each of said strips having alternate longitudinallyeorrugated portions raised and depressed, the adjacent portions of the strips being bent oppositely, as described.

ISRAEL KINNEY.

Witnesses:

R. G. RIDDoL'r, WM. T. DE GRAFF. 

